<template>

<div class="login_container">
    <div class="login_box">
      <!-- 头像区域 -->
      <div class="avatar_box">
        <img src="../assets/logo.png" alt="" />
      </div>
      <!-- 登录表单区域 -->
      <el-form ref="loginFormRef" :model="loginForm" :rules="loginFormRules" label-width="0px" class="login_form">
        <!-- 用户名 -->
        <el-form-item prop="username">
          <el-input v-model="loginForm.username" prefix-icon="iconfont icon-user" ></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop="password">
          <el-input v-model="loginForm.password"  type="password" prefix-icon="iconfont icon-3702mima"></el-input>
        </el-form-item>
        <!-- 按钮区域 -->
        <el-form-item class="btns">
          <el-button type="primary" @click="goLogin">登录</el-button>
          <el-button type="info" @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>

</template>

<script>
export default {
    data(){
        return {
            loginForm:{
                username:'admin',
                password:'123456'
            },
            loginFormRules:{
                username:[
                     { required: true, message: '请输入用户名', trigger: 'blur' },
            { min: 3, max: 5, message: '长度在 3 到 5 个字符', trigger: 'blur' }
                ],
                password:[ { required: true, message: '请输入登陆密码', trigger: 'blur' },
            { min: 6, max: 16, message: '长度在 6 到 16 个字符', trigger: 'blur' }]
            }
        }
    },
    methods:{
        resetLoginForm(){
            this.$refs.loginFormRef.resetFields()
        },
        goLogin(){
            this.$refs.loginFormRef.validate(async valid=>{
                if(!valid){
                    return this.$message.error('请输入合法的用户名和密码')
                }
                const {data:res}=await this.$http.post('login',this.loginForm)
                if(res.meta.status!==200){
                 return this.$message.error('登陆失败')
                }   
                window.sessionStorage.setItem('token',res.data.token)  
                this.$router.push('/home')
                this.$message.success('登陆成功')
                // console.log(res.data);
            })
        }
    }
}
</script>

<style lang="less" scoped>
.login_container {
  background-color: #2b4b6b;
  height: 100%;
}

.login_box {
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);

  .avatar_box {
    height: 130px;
    width: 130px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #fff;
    img {
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background-color: #eee;
    }
  }
}

.login_form {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}

.btns {
  display: flex;
  justify-content: flex-end;
}
</style>
